I didn't know what to do about them last year except hope the frost would kill them and they wouldn't come back.

I was wrong. I had to take drastic measures, so I mixed up my own Agent Orange solution from a couple of different things whose containers were labeled with words ending in "-icide." I sprayed it on myself, tuning out the usual warnings from wife to not get it on me, not breathe it...not drink it.

The results are: I'm still alive, without any nerve damage, and my driveway is covered with dozens of dead beetles.

I realize Agent Orange was the defoliant used in Vietnam and wasn't an insecticide, but I like that name. Makes you think there was a whole slew of deadly products with fruit names, such as:
Nectarine Napalm
Mango Mustard Gas
Grape Nuclear Winter Kool-Aid
Cherry Slurpee Fragmentation Big-Gulp